Apparatus for automatically lighting gas-lamps.



No. 809,814. PATENTED JAN. 9, 1906.

W. KISSBL. APPARATUS FOR'AUTOMATIOALLY LIGHTING GAS LAMPS.

APPLICATION FILED AUG.22. 1905.

WVILHELM KISSEL, OF KONIGSWVUSTERHAUSEN, GERMANY.

APPARATUS FOR AUTOMATlOALLY LIGHTING GAS-LAMPS.

Specification of Letters Patent.

Patented Jan. 9, 1 906.

Application filed August 22,1905. Serial No. 275,328.

To wZ Z whom it may concern:

Be it known that I, WILHELM KrssnL, of Konigswusterhausen, in the Province of Brandenburg and Kingdom of Prussia, Ger many, have invented Improvements in or Connected with Apparatus for Automatically Lighting Gas-Lamps; and I do hereby declare the nature of this invention and in what manner the same is to be performed to be particularly described and ascertained in and by the following statement.

This invention relates to the kind of apparatus for automatically lighting and extinguishing gas-lamps by the variation of the pressure in the gas-mains, in which a float and a mercury seal carried by it are used for opening and shutting off the gas-supply to the main burner and a pilot-jet for igniting the flame of the latter. In such apparatus as is known the seal has to be adjusted according to the locally-used pressure in the mains during the day, and this adjustment has hitherto been affected by varying the immersion of the float by weighting it more or less. The adjustment of the seal to the correct depth of dip in this manner, however, is troublesome and difficult, as for altering the load on the float the whole apparatus has to be taken to pieces and afterward put together again.

The object of this invention is to obviatethis difficulty and is attained by so arranging the gas-pipe of the burner dipping into the mercury, and hereinafter called dip-pipe, that it can be adjusted from the outside of the float-chamber instead of adjusting the immersion of the float, which can be efiected without trouble or difficulty.

On the drawings appended hereunto two forms of construction of the improved apparatus are represented.

Referring first to Figures 1 and 3, the former represents a vertical section of one form of the apparatus, and the latter a horizontal section of the same along line A B of Fig. 1. The dip-pipe a, supplying the main burner, is provided with a screw thread I) and screwed into a tapped hole of the cover 0 of the apparatus. An intermediate socket e is pushed upon the boss of the cover and carries the burner-head. To adjust the mercury seal it is only necessary to remove the socket e to ignite the gas issuing from the pipe at and then to turn the projecting part of the pipe at until its bottom end dips into the mercury in the cup f and the flame becomes extinguished. The float is preferably constructed as shown and differs from the usual construction by the mercury-cup not being arranged on its top, but near to the bottom h of the float, the cover of the float being formed with a deep depressionv By this arrangement the center of gravity of the float is in its lower part, so that the pipes extending through the base of the shell or the cup d and supplying the gas to the float-chamber k, can be made use of to guide the float. This has the further advantage that a float of the largest possible section can be placed into the chamber 7r, while when the float is not guided on the gas-pipes the float has to be reduced in diameter. i/Vhen by the dipping of the dip-pipe a into the mercury the flame becomes extinguished, the seal and float are correctly adjusted for the lower day-pressure. After the socket c has been replaced and the burner-head and mantle have been put onto the same the pilot-jet Z is ignited and adjusted. As soon as the pressure is increased at the central station by, say, a quarter of an inch the water in the float-chamber is depressed by the pressure of the gas entering into the float-chamber is through the pipes 4L and the float sinks. The orifice of the pipe a is thereby uncovered and the gas can pass to the burner, where it is ignited by the pilotjet Z. \Vhen the pressure is decreased, the float rises again and shuts 0H the supply of gas to the burner.

Vhile the construction above described has the advantage of simplicity and the smallest possible number of parts, the device shown by Fig. 2 in vertical section and by Fig. 4 in horizontal section along the line C D, Fig. 2, offers the advantage that the parts above the cover need not be removed and the turning of the pipe (I is not effected by seizing the pipe itself, which is inconvenient on account of its small diameter, but is done by turning the outer parts having a larger diameter. In this arrangement a union m is inserted with its cone into the cover 0 of the lighting apparatus, to which union the socket e, carrying the burner, is screwed. Between the union and the socket e a metal disk n with a narrow slot 0, Fig. 2, is clamped, through which the flattened end p of the burnergas-pipeapasses. Theunionislocked to the cover 0 by means of a cap 9, screwed upon boss of the cover. The manipulation of this adjusting device takes place as follows: After the cap 9 has been slightly loosened the socket e is turned, and as it is screwed tight upon the union m the latter and the disk n are turned with it. The flat end 1) of the dippipe a is taken round by the disk and the pipe screwed with its thread 1) into the cover 0, and the seal adjusted thereby. The cap Q is then screwed down again and the union m locked in its position. The self-acting ignition and extinction of the gas-flame takes place in the same manner as described with reference to Figs. 1 and 3.

Obviously other equivalent means for raising and lowering the dip-pipe may be adoptedforinstance, a rack formed on or attached to the upper part of the dip-pipe and a pinion in gear therewith inside the socket surrounding the pipe, the spindle of the pinion passing to the outside and having a knob for turning it and the pipe, passing through a stuffingboX in the cover of the float-chamber.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In apparatus for automatically lighting from a pilot-jet and extinguishing gas-lamps by means of the variations of the pressure in the mains which contains a float carrying a mercury seal for closing and opening a dippipe through which gas is supplied by the main burner.

2. The arrangement of the dip-pipe in such a manner that it can be raised and lowered from the outside of the float-chamber for the purpose of adjusting the seal.

3. The arrangement of the float with a deep cup in its top containing the mercury seal and of a dip-pipe that can be raised and lowcred from the outside of the float-chamber.

4. The arrangement of a dip-pipe provided with a screw-threaded part screwed into a tapped hole in the cover of the float-chamber and of a detachable socket carrying the burner-head round the upper part of the dippipe for the purpose of adjusting the dippipe by turning it after removal of the socket.

5. The arrangement or combination of a dip-pipe screwed through a tapped hole in the cover of the float-chamber, a socket or bush rotatably mounted on saidcover, means adapted to turn the dip-pipe round by turning the socket or bush and means adapted to lock the socket or bush on the cover.

In witness whereof I have hereunto signed my name, this 26th day of July, 1905, in the presence of two subscribing witnesses.

WILHELM KISSEL. l/Vitnesses:

HENRY HASPER, WILLIAM MAYNER. 

